Potterton Eurocondense Plus Installation Manual page 36

ADJUSTMENT TABLE FOR HEATING ENGINEERS
520 (dTrAbsenk)
Reduction of room temperature
setting
532 (Sth1) bzw. 533 (Sth2)
Heating curve steepness HC 1 or 2
Standard value for heating curve
(delivery state)
534 (DtR1) und 535 (DtR2)
Correction of room temperature
setting HC 1 and 2
Fig. 8 Heating curves diagram
36
The room temperature setting is reduced by the value set here by a connected
timer (e.g. EMS) in reduced/night mode. Adjustment range 0 to 10 K.
The room temperature setting made here is included in calculating the boiler
temperature setting when outdoor temperature control is used.
When used without room control module RRG, the steepness of the heating
curves can be set here for the pump (HC 1) or mixer heating circuit (HC 2)
Note: When used with RRG, the heating curves in the RRG are effective and
can be set there!
The settings at the heating engineer level for the BMU control centre can be
made with the room control module RRG offered in the form of room
control module and service module. In this case, the room control module
RRG serves as a programming device for the BMU heating engineer level.
The parameters which can be set, are shown in Table 7.
The factory settings for the heating curve as follows:
- Pump heating circuit 25 and
- Mixer heating circuit 25 (Fig. 8)
The heating curves can be adjusted as following, depending on the system
equipment:
- with room control module RRG: On heating engineer level for RRG
program No.70 or 80. The values from the RRG write over parameters
"532" and "533"!
- with heating circuit module HKM: On boiler module parameter "P 5"
(table 6) or
- with RRG as service module (param. "532" and "533", see table 7).
These two parameters shift the heating curve for heating circuit 1 and 2
parallel:
If the room temperature setting is not achieved with the heating curve set,
this allows adaptation.
°C
100
90
80
70
60
50
40
30
20 10 0
30
40 35 28 25
-10 -20
Außentemperatur
23
20
18
15
13
10
8
5
2,5
-30 °C